 *{margin:0;padding:0}
        #header {
            background-color:blue;
height:100px;
            color:white;
            text-align:center;
            padding:5px;
        }
       #nav {
            line-height:30px;
            background-color:yellow;
            height:300px;
            width:20%;
            float:left;
            padding:15px;	      
       }
      #section {
            width:50%;
background-color:red;
height:300px;

            float:left;
            padding:15px;	 	 
       }
 #nal {
            line-height:30px;
            background-color:yellow;
            height:300px;
            width:20%;
            float:left;
            padding:15px;	      
       }

      #footer {
            background-color: blue;
height:100px;
            color:white;
            clear:both;
            text-align:center;
            padding:5px;	 	 
      }